When copying data from this family tree, please include a reference to the origin: Jeroen Radsma, "Family tree familie Radsma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-familie-radsma/I502978.php : accessed June 7, 2024), "Johan(Jan) II De Preutse van Nesle Graaf van Soissons-Chimay (1264) (1210-1270)".
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